I started the glycerine treatment of lemon balm last night. Not sure i *like* lemon balm. It's certainly not leading with lemon notes, but i twill give it some time.
I've decanted part of the glycerine from the lemon balm (as the leaves shrunk up) to execute another flower preservation experiment. Glycerine is mentioned frequently on the web, but it's not clear to me how general it is as a preservative. I've air dried daffodils in the past (by accident, in the vase as water evaporates) and kept the crepe paper reminders of spring for some time. I tried glycerine with daffs, and the glycerine (which i now understand as a solvent) dissolved the stems. Ew. So, my current speculation is that woodier stems are needed. I've started an experiment with lilac and azalea. I might add a columbine as the wiry stems seem less like the daffodil's tender stem even though "woody" isn't a good descriptor either.
One thing about the web: the number of how to bloggers out there has essentially flooded the internet with third and fourth hand documentation that really doesn't seem tested.